Ultra-Lightweight Design and Analysis of a 1.25m SiC Segmented Mirror

Chun Mei Zeng; Jing Chi Yu; Pei Ji Guo

doi:10.4028/www.scientific.net/AMR.230-232.940

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 230-232Ultra-Lightweight Design and Analysis of a 1.25m...

Ultra-Lightweight Design and Analysis of a 1.25m SiC Segmented Mirror

Abstract:

In order to explore the feasibility of large ultra-lightweight deployable optical systems, a 1.25m SiC segmented mirror is investigated. According to analysis and comparison, the mirror's material, ultra-lightweight structure pattern and support location are determined respectively. By FEM, an ultra-lightweight structure with areal density of 40kg/m² is gotten. The results show that the self-weight deformation is 4.8nm RMS/22.6nm PV under supports, and the ultra-lightweight mirror has the enough strength to bear the stress at launch. The study may provide a technical scheme to develop the large ultra-lightweight deployable optical system.

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Periodical:

Advanced Materials Research (Volumes 230-232)

Pages:

940-944

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.230-232.940

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Online since:

May 2011

Authors:

Chun Mei Zeng, Jing Chi Yu, Pei Ji Guo

Keywords:

Deployable Optical System, Finite Element Model (FEM), Segmented Mirror, Silicon Carbide (SiC), Ultra-Lightweight

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